Stump-extractor



I (No Model.) 2 Sheets-Sheet I.

D. CORNELIUS. STUMPIEXTRAGTOR.

' 110. 247,017. Patented Sept. 13,1881

1111 1 1 lumnm 1 1|! M e v I "*"K s sneets-sneet 2',

(No Model.)

' D. CORNELIUS. STUMP EXTRAOTOR No. 247,017. Pathted Sept. :13, 1881.

. INVE NTOR WITNESSES waseh m ATTORNEY warms PhcloLilhcgr-mpher,Washington. D c

UNITED STATES I PATENT OFFICE.

DANIEL CORNELIUS, OF JEFFERSON CITY, MISSOURI, ASSIGNOR TO HIMSELF ANDM. L. KORS, OF BEARDSTOWN, ILLINOIS.

STU M P-EXTRACTOR.

SPECIFICATION forming part of Letters Patent No. 247,0 17,'datedSeptember 13, 1881;

Application filed'August16, 1881. (No model.)

1' all whom it may concern Be it known that I, DANIEL GoENELIUs, ofJefferson City, in the county of Cole and State of Missouri, haveinvented certain new andusefullmprovementsinStump-Extractors; and I dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon, which form part of thisspecification.

This invention relates to that class of devices known as stump pullersor extractors.

The object of my improvement is to save the trouble of unwinding a chainby reversing the movement ofthe whole apparatus. This object I attain bymeans of the mechanism shown in the accompanying drawings, in which-Figure 1 is a top or plan view. Fig. 2 is a side elevation; Fig. 3 is asection. Fig. 4

represents a modification.

The main frame of my machine is composed of the two base-bars Aand thetwo side ends, a. These latter ends are connected together by means ofthe metal bars B. 0 represents the main shaft, which isjournaled in theside ends of the machine, and to which my chains are connected. Thisshaft is provided with alarge gear-wheel, D, which meshes with the twoworm-gears 0 upon the vertical shafts E. These 0 shafts have upon theirupper ends the gearwheels 0, which intermesh with the large driving-gearF. The shaft of this large drivin'g-wheel is square at its upper end, soas to receive a handle for turning it. The shaft of 5 one of these upperwheels is also squared, so

that the power can be applied to either wheel. These two small upperside wheels are arranged to be engaged or disengaged from the main largedriving-wheel. This arrangement 40 is effected as follows: In both ofthe upper metallic bars is formed a slot, H, through which the shafts ofthese wheels pass; also, the vertical rods h are provided, which havetheir hearings in the upper metal bars and in the lower base-bars of theframe. On each bar is pivoted a swingingbail, I, having at their upperand lower ends the eccentrics K, the said eccentrics working in pivotedframes'L. Now, by turning these bails in one direction,

those pivoted plates through which the shafts 50.

of these worm-gears pass will be swung out from the large gear-wheel, soas to disengage the worm-gears therefrom. In this way after a stump hasbeen extracted, alter the chains 0 have been wound upon the main shaft,by swinging these bails and disengagingthe worm from the maindriving-gear the operator can. by simply drawing upon the chain, unwindit from the main shaft without the necessity of reversing the movementof the whole ap- 6o paratus.

M represents an intermediate gear, which may be arranged to intermeshwith the large gear-wheel upon the top of the frame, and also with oneof the smaller side gears, although in practice this may be dispensedwith and thelarge top gear be intermeshed directlywith the small gear.

In the modification shown in Fig. 4 I have changed the arrangement ofthe apparatus somewhat, still preserving the principles of my invention.In this case the shaft to which the chains are attached is vertical. Thewormgear intermeshes with a gear, P, upon a shaft,

9, upon which is a beveled gear, Q. This engages with a beveled gear, R,upon the shaftto which the chains are attached.

In order to anchor this machine I provide the boxes R, to which thechains S are attached. These two chains meet at a point back of themachine and are connected to a single chain, T, which can be carriedback and attached to a stump or tree in any part of the field. Thischain will be of such a length as to admit of the machine being carriedaround in a circuit of at least several hundred yards.

The device thus constructed will be found to be exceedingly simple,strong, and durable, and will avoid the necessity of reversing themovement of the entire apparatus when it be- 0 comes necessary to unwindthe chain from the main shaft in order to lengthen it out to engage onother stumps to be extracted from the ground.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. The combination, in a stump-extractor, of

the shaft upon which the chain is wound, with mechanism adapted to bedisengaged from the driving-shaft, so that after the chain has beenwound upon the side shaft the driving-bar can be disengaged from theshaft and the chain unwound without a reversal of the movement of thewhole apparatus, substantially as described.

2. The combination, with a shaft upon which the chain is wound, of alarge gear upon the shaft, a wormgear arranged to engage the gear uponthe said shaft, and pivoted bearing carrying the shaft to the worm-gear,and a swinging bail provided with eccentrics at its upper and lowerends, arranged to swing the said pivoted bearing so as to disengage theworm fi-Om the large gear, substantiallyas described.

3. The combination, with a stump-extractor,

of the main shaft 0, provided with large gear D, in combination with theworm-gears, the pivoted metal bar-plates for the shaft of said gears,the bails I, with the eccentrics upon their shafts, arranged to operatethe said pivoted bearing-plates in order to engage or disengage theworm-wheels from the main large driving-gear upon the shaft to which thechains are attached, substantially as-described.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

hi DANIEL CORNELIUS.

mark.

Witnesses: 7' T. H. ALEXANDER, WM. R. KEYWORTH.

